Szagun, G., Stumper, B., & Schramm, S. A. (2014). German communicative development inventory: An adaptation of the MacArthur-Bates communicative development inventory for toddlers. PL Academic Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Szagun, Gisela, Barbara Stumper, و Satyam Antonio Schramm. German Communicative Development Inventory: An Adaptation of the MacArthur-Bates Communicative Development Inventory for Toddlers. Frankfurt am Main, [Germany]: PL Academic Research, 2014.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Szagun, Gisela, et al. German Communicative Development Inventory: An Adaptation of the MacArthur-Bates Communicative Development Inventory for Toddlers. PL Academic Research, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.